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A BUFFER-BASED RATE CONTROL EXPLOITING FRAME COMPLEXITY, BUFFER LEVEL AND POSITION OF INTRA FRAMES IN VIDEO CODING
A BUFFER-BASED RATE CONTROL EXPLOITING FRAME COMPLEXITY, BUFFER LEVEL AND POSITION OF INTRA FRAMES IN VIDEO CODING
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机译:基于缓冲区的速率控制,探讨帧复杂度,缓冲区级别和视频编码中帧内位置
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摘要
A device and method of controlling bitrate in video coding of a sequence of frames including series of Inter frames separated by Intra frames, wherein the coded frames are validated in a video buffering device prior to transmission of the coded frames and wherein the method comprises: measuring frame complexity in the sequence of frames; for each Inter frame, calculating a target buffer level of the video buffering device in relation to a distance between the Inter frame and a next Intra frame; for each Inter frame, calculating a target frame size in relation to the distance between the Inter frame and the next Intra frame, the measured frame complexity, a current buffer level of the video buffering device and the calculated target buffer level of the video buffering device; and using the calculated target frame size to control bitrate in video coding of the sequence of frames.
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